MWDN Logo

MWDN

Data Infrastructure Engineer (Java & Rust)

Posted 18 Days Ago
Be an Early Applicant
Remote
Hiring Remotely in Greece
Senior level
Remote
Hiring Remotely in Greece
Senior level
Build and maintain high-performance data lakehouse infrastructure using Java and Rust. Develop safe, correct Apache Iceberg maintenance workflows, including compaction, snapshot expiry, manifest rewriting, and orphan-file cleanup. Contribute to a Rust-based multi-engine SQL query router, maintain connectors, review open-source contributions, and support production systems through on-call and debugging. The role requires strong ownership, distributed systems expertise, and attention to data integrity under concurrency, retries, and failures.
The summary above was generated by AI
Description

MWDN is a global IT outstaffing company with 23+ years of experience that connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We offer opportunities to work on international products in a stable and professional environment.

Why does MWDN rock?

Here’s what you can expect when you join MWDN:

  • Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments - no fraud or unpleasant surprises.
  • Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
  • Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
  • Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.

What is your new project?

Domain: Data Infrastructure & Analytics / Data Engineering

Client Location: Israel

Company Size: 2–10 employees

Founded in: 2025

A technology startup building an AI-powered platform for autonomous data lakehouse management and optimization. The product automates data maintenance, improves query performance, and reduces infrastructure costs across large-scale data environments using Apache Iceberg. The team focuses on high-performance data systems, distributed computing, Rust-based optimization, and AI integration, offering an opportunity to work on complex data infrastructure challenges in an early-stage product company.

What makes this project exciting?

We're looking for a Data Infrastructure Engineer to build and maintain high-performance data lakehouse infrastructure. You'll develop reliable data maintenance workflows for Apache Iceberg, covering compaction, snapshot expiry, manifest rewriting, and orphan file cleanup, with a strong focus on data integrity and correctness.

This role combines distributed data systems with open-source development. You'll also contribute to a Rust-based, multi-engine SQL query router, maintaining connectors, reviewing community contributions, and shaping the product roadmap. You'll have significant ownership and the opportunity to solve complex data infrastructure challenges in a product-focused startup.

What makes you a great fit
  • 5+ years of software development experience in Java
  • Strong Rust development experience
  • Experience with TypeScript
  • Production experience with data infrastructure and maintaining production systems
  • Working knowledge of Apache Iceberg and Parquet
  • Solid experience with PostgreSQL
  • Experience with Kubernetes
  • Understanding of data maintenance operations and data integrity
  • Ability to work independently and take ownership of technical solutions
  • Strong communication and collaboration skills, including code reviews and open-source contributions

Nice-to-Have:

  • Experience with Apache Spark or DataFusion
  • Experience with query engines such as Trino
  • Experience with SQL routing, query proxying, or multi-engine query systems


Your day-to-day in this position
  • Design and ship the services that turn table health signals into safe, correct maintenance operations
  • Make every commit to a customer’s table verifiably correct, including under concurrent writers, retries, and partial failures
  • Work on a production-grade compaction engine and the systems around it
  • Maintain QueryFlux: triage issues, review pull requests, build new engine connectors, and cut releases
  • Run what you build in production, including on-call and debugging in customers’ real environments
Why work with us?
  • People-first management with minimal bureaucracy
  • A friendly company culture, proven by employees who choose to return
  • Flexible working hours
  • 29 days of PTO (18 working days per year pluse all national holidays)
  • 10 paid recovery days
  • Full financial and legal support for independent contractors
  • Free English classes, with native speakers or Ukrainian teachers
  • Dedicated HR support
Our next steps

✅ Intro call with a Recruiter — ✅ Intro with the client — ✅ Home assignment (Rust) — ✅ Final client interview— ✅ Offer

Similar Jobs

Yesterday
Remote or Hybrid
Ireland, IRL
Senior level
Senior level
Information Technology • Productivity • Professional Services • Software
Build and architect scalable cloud and on-premises monitoring solutions across infrastructure, APM, and logs. Develop custom automation scripts, create testable configuration patterns, and advise clients on observability, SRE, and DevOps best practices. The role involves working across diverse client environments, managing multiple projects, exploring AI applications in observability, and accommodating US working hours and customer onsite engagements as needed.
Top Skills: AIApplication Performance MonitoringCloud ComputingDatadogDevOpsGoInfrastructure MonitoringLinuxLog ManagementObservabilityOn-Premises InfrastructurePowershellPythonServicenowShell ScriptingSreUnix
2 Days Ago
Remote or Hybrid
Ringsend, Ulster, IRL
Mid level
Mid level
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Designs and evaluates AI agents for infrastructure operations, including workflows, prompts, retrieval, tool selection, guardrails, and regression testing. Builds ground-truth datasets and metrics to measure accuracy, precision, recall, hallucinations, and production quality. Partners with SRE and domain experts to convert operational knowledge into retrievable context, transform workflows, and reduce toil and MTTR. Requires production LLM or agent application experience, strong Python, AI evaluation expertise, and familiarity with agent frameworks and RAG.
Top Skills: Amazon Bedrock AgentcoreDynatraceLanggraphLarge Language Models (Llms)PythonRetrieval-Augmented Generation (Rag)Servicenow
2 Days Ago
Remote or Hybrid
Ireland, IRL
Senior level
Senior level
Artificial Intelligence • Healthtech • Machine Learning • Natural Language Processing • Biotech • Pharmaceutical
Leads development and production deployment of AI/ML, optimization, generative AI, NLP, intelligent agents, and RPA solutions for supply chain master data. Builds predictive models, autonomous data pipelines, and automation bots; manages model monitoring, retraining, and self-healing capabilities. Partners globally with supply chain, data, and IT stakeholders to deliver phased AI enablement, translate business constraints into scalable solutions, and drive adoption and measurable impact.
Top Skills: AgileAzure Ai FoundryCplexGenerative AiGurobiKinaxisLarge Language ModelsAzureNlpPandasPower AutomatePythonPyTorchRpaScikit-LearnSQLTensorFlowUipath

What you need to know about the Dublin Tech Scene

From Bono and Oscar Wilde to today's tech leaders, Dublin has always attracted trailblazers, with more than 70,000 people working in the city's expanding digital sector. Continuing its legacy of drawing pioneers, the city is advancing rapidly. Ireland is now ranked as one of the top tech clusters in the region and the number one destination for digital companies, with the highest hiring intention of any region across all sectors.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account